A device to retain a door chock to a firefighter helmet

ABSTRACT

A device to secure a door chock to an industrial helmet more particularly a firefighter&#39;s helmet.

CROSS REFERENCE TO RELATED APPLICATIONS

This application claims priority to and the benefit of U.S. Provisional Patent Application No. 62/754,018 filed Nov. 1, 2018 and U.S. Provisional Patent Application No. 62/927,873 filed Oct. 30, 2019, the entire contents of each are incorporated by reference herein.

BACKGROUND OF THE INVENTION

Firefighters are routinely confronted with unpredictable situations. In addition to carrying tools such as axes and crowbars, a firefighter must often hold, transport and operate a fire-hose nozzle for prolonged durations. In many instances, a firefighter encounters self-closing doors which are prevalent in apartment buildings, public schools, hospitals, offices and many other buildings. These doors impede a firefighter's entry into a room causing a potentially dangerous delay.

One of the most valuable tools used by a firefighter is a door chock (also known as a door stop or door wedge) which enables the firefighter the ability to keep such self-closing doors open while he/she move equipment from one room to the next. If a large building is on fire, the firefighter may have to use the door chock several times as he/she moves from one room to the next. It is imperative that the firefighter can access his/her door chock at all times.

Currently, firefighters retain their door chock on their helmet using a large rubber band that fits around their helmet. There are several problems associated with the use of a standard rubber band. First, not all fire helmets are designed the same so one rubber band may not be as useful for one helmet as opposed to another. Second, it may be difficult, particularly when the firefighter is wearing gloves, to access the rubber band to release the door chock and then secure it again behind the rubber band particularly when the rubber band is wet or covered in flame-retardant foam. As mentioned previously, many fires require a firefighter to move from one room to the next constantly using their door chock to keep doors open. As such, it is vital to a firefighter's safety to be able to retrieve their door chock from their helmet and, after use, secure it to their helmet for the next closed door. Third, if the firefighter does not properly secure the door chock under the rubber band, the door chock can become lose and fall off the firefighter's helmet which can be problematic in conditions where visibility is a factor. Fourth, the firefighter may forget where on his/her helmet the door chock is located causing unnecessary delay when any delay can be critical. Fifth, when the rubber band is wet or exposed to foam, it tends to slide off the smoother surface of most fire helmets. Finally, the rubber bands currently used are not sufficiently chemical, impact or heat resistant and have a tendency to degrade quickly requiring frequent replacement thereof.

Accordingly, there is currently a need for a device that assists a firefighter with retaining a door chock to his or her helmet that is impact and chemical resistant, anti-static, resistant to chemicals, lightweight, waterproof and up to 500° heat resistant and easy to use.

BRIEF SUMMARY OF THE INVENTION

The present invention relates to a device to secure a common door chock (otherwise known as a door stop or door wedge) to an industrial helmet, more particularly a firefighter's helmet, wherein said device is comprised of an L-shaped body in which the door chock is positioned, a clamp capable that can be securely affixed to the brim of an industrial helmet, bore formed into said L-shaped body in which a screw can be inserted through and into said clamp and means to retain said door chock within said L-shaped body, such as a spring loop, rubber strap or o-ring or the like.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

FIG. 1 is a front view of the claimed invention in which a door chock (represented by dotted lines) has been secured to the device by a spring;

FIG. 2 is a side view of the claimed invention in which a door chock (represented by dotted lines) has been secured to the device by a spring;

FIG. 3 is a bottom view of the claimed invention in which a door chock has been secured to the device by a spring;

FIG. 4 is an illustration of the claimed invention (side view) with an installed door chock after said invention has been attached to a standard firefighter's helmet;

FIG. 5 is an illustration of the claimed invention (front view) with an installed door chock after said invention has been attached to a standard firefighter's helmet;

FIG. 6 is a front view of the claimed invention in which a door chock (represented by dotted lines) has been secured to the device by a rubber strap;

FIG. 7 is a side view of the claimed invention in which a door chock (represented by dotted lines) has been secured to the device by a rubber strap;

FIG. 8 is a bottom view of the claimed invention in which a door chock has been secured to the device by a rubber strap;

FIG. 9 is a front view of the claimed invention in which a door chock (represented by dotted lines) has been secured to the device by an o-ring;

FIG. 10 is a side view of the claimed invention in which a door chock (represented by dotted lines) has been secured to the device by an o-ring;

FIG. 11 is a bottom view of the claimed invention in which a door chock has been secured to the device by an o-ring;

FIG. 12 is a front view of a second embodiment wherein holes are formed in the planar vertical section of the L-shaped body and a door chock (represented by dotted lines) has been secured to the device by a spring;

FIG. 13 is a side view of a second embodiment according to FIG. 12 after a door chock (represented by dotted lines) has been secured to the device by a spring;

FIG. 14 is a bottom view of a second embodiment according to FIG. 12 after a door chock has been secured to the device by a spring;

FIG. 15 is an illustration (side view) of a second embodiment according to FIG. 12 after a door chock has been secured to a firefighter's helmet;

FIG. 16 is an illustration (front view) of a second embodiment according to FIG. 12 with an installed door chock after said invention has been attached to a standard firefighter's helmet;

FIG. 17 is a front view of a second embodiment according to FIG. 12 in which a door chock (represented by dotted lines) has been secured to the device by a rubber strap;

FIG. 18 is a side view of a second embodiment according to FIG. 12 in which a door chock (represented by dotted lines) has been secured to the device by a rubber strap;

FIG. 19 is a bottom view of a second embodiment according to FIG. 12 in which a door chock has been secured to the device by a rubber strap;

FIG. 20 is a front view of a second embodiment according to FIG. 12 in which a door chock (represented by dotted lines) has been secured to the device by an o-ring;

FIG. 21 is a side view of a second embodiment according to FIG. 12 in which a door chock (represented by dotted lines) has been secured to the device by an o-ring;

FIG. 22 is a bottom view of a second embodiment according to FIG. 12 in which a door chock has been secured to the device by an o-ring;

FIG. 23 are schematics of the U-shaped portion of a customized clamp according to the instant invention; and

FIG. 24 are schematics of the L-shaped body according to the instant invention.

DETAILED DESCRIPTION OF THE INVENTION Definitions

As used herein, the term “bore” refers to a hole or passage made by or as if by use of a drill.

As used herein, the term “brim” refers to a projecting rim or edge, especially around the bottom of a helmet.

As used herein, the term “bungee cord” (also referred to as a shock cord, occy strap or octopus strap), refers to an elastic cord composed of one or more elastic strands forming a core, usually covered in a woven cotton or polypropylene sheath.

As used herein, the term “cable tie” (also known as a wire tie, hose tie, steggel tie, zap strap or zip tie, and marketed under the brand names Ty-Rap® and Panduit®), refers to an elastic device commonly made of nylon, has a flexible tape section with teeth that engage with a pawl in the head to form a ratchet so that as the free end of the tape section is pulled, the cable tie tightens and does not come undone. Preferably, cable ties used in the present invention include a tab that can be depressed to release the ratchet so that the cable tie can be loosened to allow the firefighter to loosen the tie and retrieve the chock.

As used herein, the term “circle cotter” (also known as a cotter ring or split ring) refers to a wire fastener that is shaped like a circle. A similar type of fastener is a knockout ring having an upward tab bent upward as opposed to the circle cotter having an inwardly bent open tab.

As used herein, the term “o-ring” (also known as a packing) refers to a loop of elastomer with a round cross-section.

As used herein, the term “planar,” refers to the form of a plane, i.e. a flat surface.

As used herein, the term “R-clip” (also known as an R-pin, R-key, hairpin cotter pin, hairpin cotter, bridge pin, hitch pin or spring cotter) refers to a fastener made of a springy material, commonly hardened metal wire, resembling the shape of the letter “R”.

As used herein, the term “relatively,” refers to a relative manner; in comparison with something else, but not absolutely.

As used herein, the term “rubber band” (also known as an elastic band, gum band or lacky band) refers to a loop of rubber, usually ring shaped, manufactured out of natural rubber or a man-made elastomer.

As used herein, the term “serrated,” refers to having a saw-toothed edge or margin notched with toothlike projections.

As used herein, the term “snug fit,” refers to the closest fit that can be assembled by hand for parts that are not to move against each other.

As used herein, the term “thumb screw,” refers to a screw having a flat-sided or knurled head so that it may be turned by the thumb and index finger.

As used herein, the term “traverse,” refers to travel or pass across, over, or through.

As used herein, the term “threaded,” refers to something with a helical or spiral ridge.

As depicted in FIG. 1, the instant invention is directed to a device 10 to secure a door chock (otherwise known as a door stop or a door wedge) 11 (indicated by dotted lines) to an industrial helmet, in particular, a firefighter's helmet. The device is comprised of an L-shaped body having a relatively flat planar vertical section 12 and a relatively flat planar horizontal section 13. A clamp 14 is used to attach the device 10 to a firefighter's helmet. In the preferred embodiment, the L-shaped body is secured to said clamp 14 via a screw 15 (shown in outline) inserted into bore (not shown) drilled completely through the horizontal section 13, i.e. a hole that traverses the width of the planar horizontal section of the L-shaped body and into the clamp which may or may not have a previously formed opposing bore hole. The bore hole formed in the planar horizontal section and, if present, a bore hole drilled into the c clamp, may optionally have threaded walls. The vertical section of the L-shaped body may contain opposing side walls 12 a and 12 b that run along its edges that extend outward. These side walls may be at an angle to the vertical section of the L-shaped body or perpendicular thereto. These walls 12 a and 12 b provide a snug fit when the door chock 11 is installed into the device 10. The top of said side walls 12 a and 12 b may also have opposing flaps or “wings” 12 c and 12 d that extend horizontally outward from said side walls 12 a and 12 b. In other embodiments, the wings may be folded upwards at varying angles or may be perpendicular to the surface of the vertical section of the L-shaped body. These wings 12 c and 12 d contain horizontal cutouts or holes 12 e or 12 f capable of accepting the ends of the means in which to secure the door chock 11 to the device 10. In the preferred embodiment depicted in FIG. 1, a spring joined at both ends 16 is installed in the cutouts of holes 12 e or 12 f of the wings 12 c and 12 d. As depicted in FIG. 24, some embodiments may have wings 12 c and 12 d with more than one hole, preferably three. When in use, the firefighter slides the door chock 11 between the vertical section 12 of the L-shaped body and the spring 16 which extends the spring 16 beyond its relaxed state. Once installed, the elastic nature of the spring 16 causes it to return to its relaxed state which exerts pressure on the door chock 11 retaining said door chock 11 within the L-shaped body of the claimed device 10. The user may re-position the spring 16 by attaching the ends of same to opposing holes found in said wings 12 c and 12 d as shown in FIG. 24 to better secure the door chock to the device as needed.

FIG. 2 is a side view of the claimed device 20 wherein a door chock 21 (depicted by dotted lines) has been installed. In this embodiment, which differs from the embodiment depicted in FIG. 1, the opposing flaps or “wings” 22 that extend horizontally outward from the edges of the planar vertical section 24 of the L-shaped body 23 and not the top of the outwardly extending side walls 25. In this embodiment, instead of continuous side walls 25 running along the entire edges of the planar vertical section 24, said side walls 25 are broken up by the aforementioned wings 22. As illustrated, a screw (shown by a dotted line) 26 is inserted through the planar horizontal portion 27 of the L-shaped body 23 into the side 28 a of the c clamp 28 that opposes the side of c clamp 28 b in which the thumb screw is 28 b is located.

The firefighter uses the clamp 28 to secure the device 20 and door chock 21 retained therein to his/her helmet by hooking the side of the c clamp across from the thumb screw, i.e. the leading edge 28 b, above the rim while the side of the c clamp where the thumb screw 29 is situated, i.e. the trailing edge 28 b, below the rim of the helmet. The firefighter turns the thumb screw 29 clockwise to drive the screw 29 into the inner space 30 of the c clamp 28 to engage the brim of the helmet securing the device 20 to said helmet. When the firefighter wishes to remove or relocate the device 20, he/she turns the thumb screw 29 counterclockwise which withdraws the thumb screw 29 from the inner space 30 and disengages said clamp 20 from said helmet. The leading 28 a and trailing 28 b edges of the c clamp 28 may further contain flanges (not shown) facing the interior 30 of the c clamp 28 which can grip the brim of the firefighter helmet.

FIG. 3 is a top view of the claimed device 30 after the L-shaped body 31 has been anchored to the c clamp 32 from the perspective of the planar horizontal section 33. In this embodiment, an elongated mounting hole 34 is formed into the planar horizontal section 33 as opposed to a traditional bore. The elongated mounting hole 34 allows the user to slide the L-shaped body 31 via the mounting screw 35 along the length of the elongated mounting hole 34, thus repositioning the device 30 closer to or away from the user's helmet upon which the device 30 is mounted.

FIG. 4 depicts the claimed device 40 mounted to a traditional firefighter's helmet 41. The door chock 42 has been inserted into the L-shaped body 43 and is flush with planar vertical 46 and planar horizontal 44 sections of said L-shaped body 43. A closed wire coil 45 secures the door chock 42 to the L-shaped body 43. The outward facing side walls 45 that run along the lengths of the edges of the planer vertical section 45 further hold the door chock 42 within the device. The side 47 of the c clamp 46 that opposes the thumb screw 48 is shown engaging the brim 49 of said helmet 41. The side (not shown) of the clamp 46 which contains the thumb screw 48 is positioned beneath the brim 49 of the helmet 41. To secure the device 40 to the helmet 41, the user rotates the thumb screw 48 clockwise causing it to engage with the underside of the brim 49 of the helmet 41 until sufficient force is exerted and the thumb screw 48 cannot be rotated any further.

It should be appreciated that in other embodiments, rotation of the thumb screw counterclockwise results in the thumb screw to engage the helmet upon which is mounted securing the device to said helmet.

The head of the thumb screw may be serrated to allow the user with a better grip in wet or other undesirable environmental conditions.

FIG. 5 shows a side view of the claimed device 50 mounted to a modern firefighter's helmet 51. The door chock 52 has been inserted into the L-shaped body 53 and is flush with planar vertical 56 and planar horizontal 54 sections of said L-shaped body 53. A closed wire coil 55 secures the door chock 52 to the L-shaped body 53. The outward facing side walls 55 that run along the lengths of the edges of the planer vertical section 56 further hold the door chock 52 within the device. The side (not shown) of the c clamp 56 that opposes the thumb screw 58 engages the brim 59 of said helmet 51. The side (not shown) of the clamp 56 which contains the thumb screw 58 is positioned beneath the brim 59 of the helmet 51. To secure the device 50 to the helmet 51, the user rotates the thumb screw 58 clockwise causing it to engage with the underside of the brim 59 of the helmet 51 until sufficient force is exerted and the thumb screw 58 cannot be rotated any further.

FIG. 6 depicts the invention of FIG. 1 when the c clamp is positioned away from the user as opposed to FIGS. 1-5 having the c clamp 64 positioned towards the user exposing the inner space 67 of the c clamp 64. The embodiment also utilizes a rubber strap 66 closed at both ends to secure the door chock 61 within the L-shaped body. To accommodate the wider strap 66, the opposing flaps or “wings” 62 c and 62 d are formed with reverse C-shaped cutouts 62 e and 62 f as opposed to the traditional circular bores found in the embodiments depicted in FIGS. 1-5. To insert the rubber strap 66 into the C-shaped cutouts 62 d and 62 e, the user can momentarily deform said strap 66 and then allow said strap 66 to return back to its normal state after installation.

The device is comprised of an L-shaped body having a relatively flat planar vertical section 62 and a relatively flat planar horizontal section 63. A clamp 64 is used to attach the device 60 to a firefighter's helmet. In the preferred embodiment, the L-shaped body is secured to said clamp 64 via a screw 65 (shown in outline) bore (not shown) drilled completely through the horizontal section 63 of the L-shaped body. The vertical section 62 of the L-shaped body may contain opposing side walls 62 a and 62 b that run along its edges that extend outward. These walls 62 a and 62 b provide a snug fit when the door chock 61 is installed into the device 60. The top of said side walls 62 a and 62 b may also have opposing flaps or “wings” 62 c and 62 d that extend horizontally outward from said side walls 62 a and 62 b. These wings 62 c and 62 d contain cutouts or holes 62 e or 62 f capable of accepting the ends of the means in which to secure the door chock 61 to the device 60.

When in use, the firefighter slides the door chock 61 between the vertical section 62 of the L-shaped body and the rubber strap 66 which extends the rubber strap 66 beyond its relaxed state. Once installed, the elastic nature of the rubber strap 66 causes it to return to its relaxed state exerting pressure on the door chock 61 which in turn retains said door chock 61 within the L-shaped body of the claimed device 60.

FIG. 7 is a side view of the claimed device 70 as depicted in FIG. 2 wherein the spring is replaced with a rubber strap 66 and instead of bore holes, C-shaped cutouts are formed into opposing flaps or “wings” that extend horizontally outward from said side walls.

FIG. 8 is the device as depicted in FIG. 3 wherein the spring is replaced with a rubber strap 66 and, instead of bore holes, C-shaped cutouts are formed into opposing flaps or “wings” that extend horizontally outward from said side walls.

FIG. 9 depicts the invention of FIG. 1 when the c clamp is positioned away from the user as opposed to the embodiments depicted in FIGS. 1-5 wherein the c clamp 94 is positioned towards the user. In this embodiment, the inner space 97 of the c clamp 94 is exposed. This embodiment also utilizes an o-ring 96 closed at both ends to secure the door chock 91 within the L-shaped body. To accommodate the o-ring 96, the opposing flaps or “wings” 92 c and 92 d are formed with reverse stick-and-ball-shaped cutouts 92 e and 92 f as opposed to the traditional circular bores found in the embodiments depicted in FIGS. 1-5. To insert the o-ring 96 into the stick-and-ball-shaped cutouts 92 d and 92 e, the user can momentarily deform said o-ring 96 and then allow said o-ring 96 to return to its normal state after installation.

The device is comprised of an L-shaped body having a relatively flat planar vertical section 92 and a relatively flat planar horizontal section 93. A clamp 94 is used to attach the device 90 to a firefighter's helmet. In the preferred embodiment, the L-shaped body is secured to said clamp 94 via a screw 95 (shown in outline) bore (not shown) drilled completely through the horizontal section 93 of the L-shaped body. The vertical section 92 of the L-shaped body may contain opposing side walls 92 a and 92 b that run along its edges that extend outward. These walls 92 a and 92 b provide a snug fit when the door chock 91 is installed into the device 90. The top of said side walls 92 a and 92 b may also have opposing flaps or “wings” 92 c and 92 d that extend horizontally outward from said side walls 92 a and 92 b. These wings 92 c and 92 d contain cutouts or holes 92 e or 92 f capable of accepting the ends of the means in which to secure the door chock 91 to the device 90.

When in use, the firefighter slides the door chock 91 between the vertical section 92 of the L-shaped body and the rubber strap 96 which extends the rubber strap 96 beyond its relaxed state. Once installed, the elastic nature of the rubber strap 96 causes it to return to its relaxed state which in turn exerts pressure on the door chock 91 retaining said door chock 91 within the L-shaped body of the claimed device 90.

FIG. 10 is a side view of the claimed device 100 as depicted in FIG. 2 wherein the spring is replaced with an o-ring 96 and, instead of bore holes, stick-and-ball-shaped cutouts are formed into opposing flaps or “wings” that extend horizontally outward from said side walls.

FIG. 11 is the device as depicted in FIG. 3 wherein the spring is replaced with an o-ring 96 and, instead of bore holes, stick-and-ball-shaped cutouts are formed into opposing flaps or “wings” that extend horizontally outward from said side walls.

FIGS. 12-22 (which parallel FIGS. 1-11) are depictions of a further embodiment of the instant invention wherein holes have been formed into the planar vertical section of the L-shaped body. The holes serve two purposes. The user can use said holes to further secure the claimed device to their helmet by known means in the art, including, but not limited to, rubber bands, o-rings, closed springs, belts, screws, bolts, fasteners and the like. In addition, said holes reduce the weight of the device which is crucial as most firefighter helmets are already heavy and most firefighters attach lights and other useful tools to their helmets.

The L-shaped body may be formed using any number of known techniques to manufacture metal products, including, but not limited to, punching (or blanking), press forging, forging (or drop forging), rolling, thread rolling, extrusion, bending or casting, including die casting. The L-shaped body may be custom made or mass-produced using known techniques in the art. If a metal or a metal composite is the desired material in which to produce the L-shaped body, iron, aluminum, copper, stainless steel, steel alloy, carbide or cermet are preferred. The L-shaped body may also be made from a high polymer resin such as polymide-imide (PAI), poly ether imide (PEI), polyacetal (POM), poly phenylene sulfide (PPS), poly ether ether ketone (PEEK), poly tetra fluoro ethylene (PTFE), polymide 6 (PA6), polyethylene (PE), polypropylene (PP), vinyl chloride resin (VC), polystyrene (PS), polyethylene-telephthalate (PET), acrylonitrile butadiene (ABS). When using a polymer, the L-shaped body may be pre-fabricated in several sizes, i.e. small, medium and large, or may be custom-made using an additive manufacturing process (“3D printing”), constructed using a molding, vacuum forming or thermal forming process, or any other known or yet to be discovered. The L-shaped body may also be manufactured from ceramic or any combination of a metal (ferrous or nonferrous), ceramic or high polymer resin.

The sections of the L-shaped body, i.e. the flat planar vertical section 12, flat planar horizontal section 13, side walls 12 a and 12 b, opposing flaps or “wings” 12 c and 12 d and/or elongated mounting hole 34 may be formed as one unit using any known process, such as die casting, or from a single sheet of metal or each section may be formed individually and thereafter fused together using known methods such as welding, soldering, gluing or the like (except the elongated mounting hole 34 which may be formed into flat planar horizontal section 13 which may be formed into the separate flat planar horizontal section 13 prior to assembly). The cutouts, i.e. elongated mounting hole 34, bore holes, C-shaped or stick-and-ball-shaped cutouts, may be formed when the L-shaped body is first cast or may be formed using known metal cutting tools such as a sheet metal snip, jig saw, circular saw, angle grinder, reciprocating saw, air saw, cut off tool, die grinder, chop saw, torch or plasma cutter. In the preferred embodiments, the L-shaped body is between 1 to 2 inches and the length of the planar vertical section is 5½ inches and the length of the flat planar horizontal section is between 1¼ to 1¾ inches.

A c clamp screw compressor clamp, having a U-shaped body and an adjustable screw-portion, is employed in the preferred embodiment and in a more preferred embodiment the head of said screw-portion is serrated to provide the user a better grip in wet conditions. The legs of the U-shaped body may also be designed with inwardly facing flanges on the outer edges of the inner sides of said legs so as to “grip” the brim of the firefighter's helmet on which the device is mounted. The inner side of the leg of the U-shaped body that is opposite of the leg in which the screw-portion is found, may be relatively straight (See FIG. 23) or formed with a downward angle, depending on the type of fire helmet on which the device is to be installed. The invention may utilize commercially-available mini-clamps although clamps specifically designed for use in the claimed invention may also be used. In one embodiment, the L-shaped body and clamp are made as one unit wherein the flat planar horizontal section is formed with a clamp underneath.

Examples of commercially-available clamps include, but are not limited to, Grafco small c clamp screw compressor (Graham-Field Health Products, Atlanta, Ga.), ABTM Midget panel clamp (AES Industries, Inc., Tallassee, Ala.), A-TAC® Firefighter Structural Goggle Accessory A-PC (Paulson Manufacturing Corp., Temecula, Calif.), QuickFist® mini clamp (End of the Road, Inc., Nashville, Tenn.), Universal Helmet Flashlight Holder 0770-010-110 (Pelican Products, Torrence, Calif.), ACE Firefighter Helmet Flashlight Holder (Pelican Products, Torrence, Calif.) or Universal Adjustable Helmet Clip (Underwater Kinetics, Poway, Calif.).

The claimed embodiments may or may not include a screw connecting the flat planar horizontal section and the clamping means. The claimed device utilizes commercially-available screws and/or other fastening means.

The materials selected to manufacture the parts of the claimed invention must have certain characteristics due to the harsh environment in which the product will encounter. The selected materials need to be noncorrosive and chemical resistant as smoke can contain toxic chemicals due to the burning of synthetic household materials. In addition, chemicals used by firefighters, such as water-based fire-retardant foam, carbon dioxide, halon and/or sodium bicarbonate, can also corrode certain metals. Any materials used must be rust-resistant as water is the primary means in which to extinguish a fire. Durability and impact resistance are important characteristics as the claimed device will be subject to extreme conditions. The chosen material should be anti-static to prevent sparks in situations where flammable materials are involved. Materials that are up to 500° heat resistant are preferred. As the invention is worn on the head of the user any material used should be lightweight and be able to be molded/formed into a compact structure. For the preferred embodiment, aluminum was selected for it displays all the aforementioned characteristics.

The door chock is retained in the L-shaped body using any of a number of restraining means including, but not limited to, bungee cord, cable tie, circle cotter, cord, cotter pin, hairpin clip, knockout ring, o-ring, R-clip, rope, rubber band shock cord, helical or coil spring, strap, twine, thread and wire. In one embodiment, the securing means is a metal bar having a distal end and a proximal end wherein said distal end is affixed to one raised side edge by a hinge having a locking means, wherein said proximal end contains a locking means to secure said proximal end of said bar to the raised side edge opposite the raised side edge that the distal end is affixed provided that said metal bar is capable of moving away and towards said L-shaped body. In the preferred embodiments, a spring (Acorn Engineering Company, Inc., City of Industry, Calif.), industrial rubber band (Alliance Rubber Company, Hot Springs, Ark.) or o-ring (Fed-Pro®, Federal-Mogul Motorparts LLC, Southfield, Mich.) is employed. The spring, rubber band and o-ring may be closed or open at both ends. If an open-ended version of the spring, rubber band or o-ring is used, the ends thereof should be modified with some type of attachment means, such as a hook, knob or button, which engages the bore holes, C-shaped or stick-and-ball-shaped cutouts found in the wings.

The device is easily mounted to the brim of a traditional or modern firefighter's helmet. The user simply hooks the leading edge of the clamp over the brim of the helmet while positioning the lagging end with the thumb screw under the brim. By rotating the thumb screw, which in one embodiment has a serrated head, the opposite end of the thumb screw advances towards the lower part of said brim eventually engaging same and securing the device.

Reflective strips may be affixed to the device to provide illumination in environments with limited visibility.

It should be appreciated that the claimed device may be modified to attach devices other than door chocks to a firefighter's helmet, such as a flash light, screw driver and the like.

Kits

This disclosure also provides kits for conveniently and effectively implementing the device disclosed herein. Such kits comprise the L-shaped body, an adjustable clamp capable of attachment to the brim of a traditional or modern firefighter's helmet, means in which to attach said L-shape body to the clamp (in the preferred embodiment said means is a screw), and means in which to secure a door chock to the L-shaped body (in the preferred embodiment said means can be a coiled wire, rubber strap or o-ring).

The claimed kits may require assembly prior to use.

EQUIVALENTS

Unless otherwise indicated, all numbers expressing quantities used in the specification and claims are to be understood as being modified in all instances by the term “about”, “approximately” or “relatively.” Accordingly, unless indicated to the contrary, the numerical parameters set forth in this specification and attached claims are approximations that may vary depending upon the desired properties sought to be obtained by the present invention.

The above discussion is meant to be illustrative of the principle and various embodiments of the present invention. While specific embodiments of the subject invention have been discussed, the above specification is illustrative and not restrictive. Many variations of the invention will become apparent to those skilled in the art upon review of this specification and once the above disclosure is fully appreciated. The full scope of the invention should be determined by reference to the claims, along with their full scope of equivalents, and the specification, along with such variations. It is intended that the following claims be interpreted to embrace all such variations and modifications. 

What is claimed:
 1. A device to secure a door chock to an industrial helmet comprising an L-shaped body having a relatively flat planar vertical section and a relatively flat planar horizontal section; a clamp; and means in which to secure said L-shaped body to said clamp; and means in which to secure a door chock to the L-shaped body; wherein said helmet is a firefighter's helmet having a brim.
 2. (canceled)
 3. The device according to claim 1, wherein said flat planar vertical section further comprises raised side walls extending outwards from said flat planar vertical section; wherein said raised side edges create a snug fit when said door chock is positioned in said device.
 4. (canceled)
 5. The device according to claim 1, wherein said securing means is selected from the group consisting of bungee cord, cable tie, circle cotter, cord, cotter pin, hairpin clip, knockout ring, o-ring, R-clip, rope, rubber band shock cord, helical or coil spring, strap, twine, thread and wire.
 6. The device according to claim 1, wherein said securing means is a metal bar having a distal end and a proximal end; wherein said distal end is affixed to one raised side edge by a hinge having a locking means; and wherein said proximal end contains a locking means to secure said proximal end of said bar to the raised side edge opposite the raised side edge that the distal end is affixed provided that said metal bar is capable of moving away and towards said L-shaped body.
 7. The device according to claim 1, further comprising one or more pairs of horizontal cuts into the planar vertical section, wherein each pair of horizontal cuts are forged into opposing sides of said planar vertical section; wherein said cuts accommodate and secure an o-ring to said device.
 8. (canceled)
 9. The device according to claim 1, wherein said clamp is a c clamp screw compressor clamp having a serrated thumb screw head; wherein the side of said c clamp opposing the side with the thumb screw head is positioned over the brim of the helmet and the side with the thumb screw is situated below the brim so that when the user turns the thumb screw head, the lower portion of the clamp comes in contact with the brim of said helmet securing said device to said helmet.
 10. (canceled)
 11. The device according to claim 9, wherein the side of said c clamp opposing the thumb screw further comprises an inwardly facing flange; wherein when said device is installed on the brim of a firefighter helmet said flange comes in contact with said brim securing said device to said brim.
 12. The device according to claim 1, wherein the planar horizontal section comprises a bore hole and said side of said c clamp opposing the thumb screw comprises a bore hole.
 13. The device according to claim 12, wherein said bore hole in said planar horizontal section traverses the entire width of said planar horizontal section and is an elongated mount hole.
 14. The device according to claim 12, wherein the side walls of the bore holes of the planar horizontal section and the side walls of the bore hole in the c clamp are threaded.
 15. (canceled)
 16. The device according to claim 1, wherein said L-shaped body is secured to said clamp with a screw.
 17. The device according to claim 16, wherein said screw is capable of moving said L-shaped body across said clamp so as to position said L-shaped body closer to or farther away from the helmet to which said device is mounted and then securing said device to said helmet when the user has determined the optimal positioning of said device.
 18. The device according to claim 1, wherein said L-shaped body is forged as a single unit or the flat planar vertical section and the flat planar horizontal section are manufactured separately and then fused together.
 19. (canceled)
 20. The device according to claim 1, wherein the L-shaped body is manufactured from a material selected from the group consisting of high polymer resin, ceramic, a metal and any combination thereof, provided said material is impact and chemical resistant, anti-static, resistant to chemicals, lightweight, waterproof and up to 500° heat resistant.
 21. (canceled)
 22. The device according to claim 20, wherein said L-shaped body is manufactured from iron, aluminum, copper, carbide, cermet, stainless steel, polymide-imide (PAI), poly ether imide (PEI), polyacetal (POM), poly phenylene sulfide (PPS), poly ether ether ketone (PEEK), poly tetra fluoro ethylene (PTFE), polymide 6 (PA6), polyethylene (PE), polypropylene (PP), vinyl chloride resin (VC), polystyrene (PS), polyethylene-telephthalate (PET), acrylonitrile butadiene (ABS) and any combination thereof.
 23. The device according to claim 22, wherein said L-shaped body and said clamp are formed from durable and lightweight aluminum or stainless steel or a steel alloy.
 24. The device according to claim 1, wherein said device may be mounted on both traditional and modern style firefighter helmets.
 25. (canceled)
 26. (canceled)
 27. (canceled)
 28. The device according to claim 1, further comprising one or more reflective strips affixed to said device, wherein said strip provides visibility in environments with little or no light.
 29. The device according to claim 1, wherein the width of the legs of the L-shaped body is between 1 to 2 inches and the length of the planar vertical section is 5½ inches and the length of the flat planar horizontal section is between 1¼ to 1¾ inches.
 30. (canceled)
 31. The device according to claim 1, wherein said L-shaped body further comprises one or more holes. 